I'm wondering if you would see any difference between the pouch and a regular White Labs tube.
If the only difference between the tube and the pouch is that the yeast in the pouch is more "pure", shouldn't the only difference in the resultant beer be whether or not it was contaminated by impurities in the tube?
Hard to say but few thoughts: early in brewing I was pitching a tube of white labs without great success in finished product. Generally, the tubes I would get were somewhere between a month to 6 weeks old.
If I understand the theory here, it's not just contamination or impurities, but yeast being in its most optimal and healthy condition. Mark has posted a great deal on importance and benefit of this, and my goal was to see if under pitching with a pure pouch would generate as good or better beer than that with a starter.
Not suggesting this is a magic bullet. This is just one test , albeit with results that quite honestly exceeded my expectations.
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